﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StackTest
{
    class Program
    {
        static void Main(string[] args)
        {
            Stack<string> stack = new Stack<string>();
            stack.Push(null);
            //var nullString = stack.Peek();
            Console.WriteLine(stack.Count.ToString());
            Console.WriteLine(stack.Peek());
            Console.ReadKey();
        }
    }
}
